diff --git a/checkin_notes b/checkin_notes
index b9c21f3461..f7449a515b 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -7527,3 +7527,9 @@ David  12 July 2006
         cpu_sched.C
         cs_apps.C
         cs_scheduler.C
+
+David  13 July 2006
+    - core client: adjust_debts() returns if elapsed time < 1
+
+    client/
+        cpu_sched.C
diff --git a/client/cpu_sched.C b/client/cpu_sched.C
index e6c37d66ce..cf5e92182b 100644
--- a/client/cpu_sched.C
+++ b/client/cpu_sched.C
@@ -208,6 +208,8 @@ void CLIENT_STATE::adjust_debts() {
     double share_frac;
     double wall_cpu_time = gstate.now - adjust_debts_last_time;
 
+    if (wall_cpu_time < 1) return;
+
     // Total up total and per-project "wall CPU" since last CPU reschedule.
     // "Wall CPU" is the wall time during which a task was
     // runnable (at the OS level).